/*
 * Tencent is pleased to support the open source community by making spring-cloud-tencent available.
 *
 * Copyright (C) 2021 Tencent. All rights reserved.
 *
 * Licensed under the BSD 3-Clause License (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * https://opensource.org/licenses/BSD-3-Clause
 *
 * Unless required by applicable law or agreed to in writing, software distributed
 * under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
 * CONDITIONS OF ANY KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations under the License.
 */

package com.tencent.cloud.polaris.context.config.extend.tsf;

import java.util.HashMap;
import java.util.Map;

import com.tencent.cloud.common.tsf.TsfContextUtils;
import com.tencent.polaris.api.utils.StringUtils;
import org.apache.commons.logging.Log;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.context.config.ConfigDataEnvironmentPostProcessor;
import org.springframework.boot.env.EnvironmentPostProcessor;
import org.springframework.boot.logging.DeferredLogFactory;
import org.springframework.core.Ordered;
import org.springframework.core.env.ConfigurableEnvironment;
import org.springframework.core.env.MapPropertySource;

/**
 * Read TSF env.
 *
 * @author Haotian Zhang
 */
public final class TsfLastEnvironmentPostProcessor implements EnvironmentPostProcessor, Ordered {

	/**
	 * run before {@link ConfigDataEnvironmentPostProcessor}.
	 */
	public static final int ORDER = ConfigDataEnvironmentPostProcessor.ORDER + 1;

	private final Log LOGGER;

	private TsfLastEnvironmentPostProcessor(DeferredLogFactory logFactory) {
		this.LOGGER = logFactory.getLog(getClass());
	}

	@Override
	public int getOrder() {
		return ORDER;
	}

	@Override
	public void postProcessEnvironment(ConfigurableEnvironment environment, SpringApplication application) {
		String tsfAppId = environment.getProperty("tsf_app_id");
		// TSF deploy
		if (StringUtils.isNotBlank(tsfAppId)) {
			Map<String, Object> defaultProperties = new HashMap<>();

			if (TsfContextUtils.isTsfConsulEnabled(environment)) {
				defaultProperties.put("spring.cloud.consul.discovery.enabled", environment.getProperty("spring.cloud.consul.discovery.enabled", "true"));
				defaultProperties.put("spring.cloud.consul.discovery.register", environment.getProperty("spring.cloud.consul.discovery.register", "true"));
			}

			MapPropertySource tsfLastPropertySource = new MapPropertySource("tsf-last-properties", defaultProperties);
			environment.getPropertySources().addLast(tsfLastPropertySource);
		}
	}
}
